Enter Michael Kitchen, the fine British actor whose minimalist performance here makes Anthony Hopkins’s famously tight performance as a butler in “Remains of the Day” resemble Sean Penn on parade…He’s marvelous as Foyle, a middle-age widower with a son flying for the Royal Air Force. His verbal output is often monosyllabic, yet nuanced with the deft use of his eyes, slight cocks of his head, brief slumps of his shoulders. This lonely, attractive man misses nothing. Would that American detectives presented such restraint.